#何子轩
class Animal:
    def __init__(self,species,sound):
      if species in ['猫','狗','羊','猴子','老虎','大象']:
        self.species = species
        self.sound = sound
      else:
        self.species = None
        self.sound = None
    def speak(self):
      if self.species == None:
          print('动物园里没有该动物，游戏结束！')
          return False
      else:
          print(self.species,self.sound)
          return True
      print('动物园里有什么')
      flag = True
      while flag:
          s = input('请输入动物种类和叫声(使用空格隔开）:')
          listl = s.split('')
          animal = Animal(list1[0], list1[1])
          flag = animal.speak()